Database
[{"_id":ObjectId("5fd33ddd23505e1538b96116"),"Array":["one","two","three","four","five"]}]
Query
db.collection.aggregate([{$match:{"_id":ObjectId("5fd33ddd23505e1538b96116")}},{$set:{Array:{$map:{input:{$filter:{input:{$map:{input:"$Array",as:"x",in:{Position:{$add:[{$indexOfArray:["$Array","$$x"]},1]},Value:"$$x"}}},as:"xx",cond:{$in:["$$xx.Position",[1,3,5]]}}},as:"xxx",in:"$$xxx.Value"}}}}])